Home / 910,314.40-1,256,207.76-507,897.76

Finding the Fourth Proportional to 910,314.40, 1,256,207.76 and 507,897.76

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Solution

The fourth proportional to 910,314.40, 1,256,207.76 and 507,897.76 is: 700,884.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,314.40 : 1,256,207.76 = 507,897.76 : x
  2. Step 2: Convert to fraction form
    910,314.40/1,256,207.76 = 507,897.76/x
  3. Step 3: Cross multiply
    910,314.40x = 1,256,207.76 × 507,897.76
  4. Step 4: Simplify right side
    910,314.40x = 638,025,107,398.62
  5. Step 5: Solve for x
    x = 638,025,107,398.62/910,314.40
  6. Step 6: Final answer
    x = 700,884.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.